irqchip/atmel-aic: Remove root argument from ->fixup() prototype

We are no longer using the root argument passed to the ->fixup() hooks.
Remove it.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
diff --git a/drivers/irqchip/irq-atmel-aic-common.c b/drivers/irqchip/irq-atmel-aic-common.c
index 0565070..072bd22 100644
--- a/drivers/irqchip/irq-atmel-aic-common.c
+++ b/drivers/irqchip/irq-atmel-aic-common.c
@@ -137,7 +137,7 @@ static void __init aic_common_ext_irq_of_init(struct irq_domain *domain)
 #define AT91_RTC_IMR           0x28
 #define AT91_RTC_IRQ_MASK      0x1f
 
-void __init aic_common_rtc_irq_fixup(struct device_node *root)
+void __init aic_common_rtc_irq_fixup(void)
 {
 	struct device_node *np;
 	void __iomem *regs;
@@ -165,7 +165,7 @@ void __init aic_common_rtc_irq_fixup(struct device_node *root)
 #define AT91_RTT_ALMIEN		(1 << 16)		/* Alarm Interrupt Enable */
 #define AT91_RTT_RTTINCIEN	(1 << 17)		/* Real Time Timer Increment Interrupt Enable */
 
-void __init aic_common_rtt_irq_fixup(struct device_node *root)
+void __init aic_common_rtt_irq_fixup(void)
 {
 	struct device_node *np;
 	void __iomem *regs;
@@ -198,8 +198,8 @@ static void __init aic_common_irq_fixup(const struct of_device_id *matches)
 	match = of_match_node(matches, root);
 
 	if (match) {
-		void (*fixup)(struct device_node *) = match->data;
-		fixup(root);
+		void (*fixup)(void) = match->data;
+		fixup();
 	}
 
 	of_node_put(root);